It likely starts the LLM it uses as a service, and it requires running on a port. They could of course have rewritten it to not use a port and instead use other mechanisms possible when you’re in control of the code but then that requires modification of the LLM project they use and would make updating its version harder so such a thing would be reserved for the full release or skipped all together because it’s not really a big deal. All this assuming that they do use one of the hundreds of open source local LLM projects floating around Github.